CN104548421A - Automatic fire extinguishing device - Google Patents
Automatic fire extinguishing device Download PDFInfo
- Publication number
- CN104548421A CN104548421A CN201310491262.8A CN201310491262A CN104548421A CN 104548421 A CN104548421 A CN 104548421A CN 201310491262 A CN201310491262 A CN 201310491262A CN 104548421 A CN104548421 A CN 104548421A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- fluid reservoir
- battery case
- automatic fire
- control end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
Abstract
The invention provides an automatic fire extinguishing device which is used for fire extinguishing of one or more battery boxes. The automatic fire extinguishing device includes a plurality of water injection electromagnetic valves mounted on the battery boxes, a liquid storage tank, a pinhole valve, a pressurizing electromagnetic valve and controllers, wherein the liquid storage tank is communicated with a high pressure gas storage tank of a vehicle through the pressurizing electromagnetic valve; the bottom of the liquid storage tank is communicated with the water injection electromagnetic valves through pipelines; the pinhole valve is mounted at the top of the liquid storage tank; a temperature sensor and a smog sensor are mounted inside each of the battery boxes; each controller is electrically connected with the temperature sensor, the smog sensor and the pressurizing electromagnetic valve respectively. As the mounting position of the liquid storage tank is lower than the position of the water injection electromagnetic valves of the battery boxes and air pressure leaked from the pressurizing electromagnetic valve is exhausted from the liquid storage tank through mounting the pinhole valve, the automatic fire extinguishing device maintains the pressure with normal pressure state in the liquid storage tank and prevents breakdown of the vehicle after leakage of the electromagnetic valve effectively.
Description
Technical field
The present invention relates to electric automobile field, particularly a kind of on electric automobile for preventing the automatic fire extinguisher of battery case ignition/explosion.
Background technology
Lithium ion battery has that specific capacity is large, operating voltage is high, has extended cycle life, volume is little, the advantage such as lightweight, has become the first-selection of electric automobile at present.Electrokinetic cell as electric car power supply requires to have larger capacity and voltage, and the voltage of the lithium ion battery of monomer and capacity are all very little, therefore, generally on electric automobile, need a lot of cells to be installed in multiple battery case, form by series and parallel the requirement that battery pack reaches car power source.
But due to reasons such as production technologies, inevitably there are some differences in the capacity of each cell and performance, electric automobile is when running and charge, the battery of the little poor performance of capacity there will be again super-charge super-discharge phenomenon, if things go on like this, this species diversity will inevitably be increasing, makes the utilization rate of battery pack worse and worse.More seriously, under overcharging or crossing the environment put, the barrier film between battery positive/negative plate can breakdown and short circuit, produces high temperature, overheated electrolyte is vaporized, expansion and battery case is broken, and even catches fire or explodes.Therefore, it is necessary for electric automobile arranging extinguishing device.
Generally on electric automobile, all hand fire extinguisher can be equipped with, but, hand fire extinguisher fire-fighting dose is less, and can delayed life period to implementing fire extinguishing from finding that electric automobile burst is smoldered/caught fire, once catch fire, substantially not having great effect to effectively implementing batteries of electric automobile fire extinguishing, battery case even can be caused to explode.Existing battery case fire-fighting technique, mostly by checkout gear detect in any battery case have temperature too high or smoke conditions on fire time, controller controls the solenoid valve conduction of the too high or on fire battery case of smoldering of corresponding temperature, foam mixing liquid in fluid reservoir injects in corresponding battery case, carries out cooling fire extinguishing process.Owing to keeping high pressure conditions for a long time in fluid reservoir, when using for a long time, will certainly there is tiny leakage situation in magnetic valve, causes the high-pressure foam mixed liquor in fluid reservoir to flow into battery case, cause vehicle trouble problem.
Summary of the invention
In view of the above, the present invention is necessary to provide a kind of automatic fire extinguisher that can effectively prevent magnetic valve from leaking.
A kind of automatic fire extinguisher, it is for being one or more battery case fire extinguishing, comprise some water injecting electromagnetic valves be arranged on described battery case, fluid reservoir, needle valve, add pressure electromagnetic valve and controller, described fluid reservoir is communicated with the high pressure tank of vehicle by adding pressure electromagnetic valve, the bottom of described fluid reservoir is communicated with described water injecting electromagnetic valve by pipeline, described fluid reservoir installation site is lower than the installation site of described water injecting electromagnetic valve, described needle valve is installed on the top of fluid reservoir, keep being communicated with outside air, balance is kept to make described fluid reservoir pressure, in described each battery case, temperature sensor and Smoke Sensor are all installed, described controller respectively with described temperature sensor, Smoke Sensor and add pressure electromagnetic valve electrical connection.
Further, described controller comprises signal sampling unit and control unit, described signal sampling unit is all electrically connected with the temperature sensor in described each battery case and Smoke Sensor, described control unit comprises the first control end and the second control end, described first control end can distinguish output multi-channel control signal, individually control each water injecting electromagnetic valve, described second control end and described first control end synchronization action, described in control, add pressure electromagnetic valve whether conducting.
Further, described second control end also Synchronization Control primary cut-out, controls primary cut-out and disconnects main circuit.
Further, the top of described each battery case all offers air inlet and installs ventilating fan.
Further, described fluid reservoir tank skin is provided with the observation window of liquid level of band scale.
Further, the pipeline between fluid reservoir with water injecting electromagnetic valve is all connected by snap joint.
Further, described fluid reservoir is built with water or the foam mixing liquid prepared by a certain percentage by fire foam and water.
Compared to prior art, automatic fire extinguisher of the present invention, by changing the installation site of fluid reservoir, makes the installation site of fluid reservoir lower than the position of battery case water injecting electromagnetic valve; By installing the pressure in needle valve change fluid reservoir, under battery case non-faulting state, the pressure in fluid reservoir and the external world is kept to balance each other.Connect all non-atmospheric pressure state in water injecting electromagnetic valve two ends of battery case, can effectively prevent magnetic valve from occurring leaking, water or mixed liquor flow in battery case, cause vehicle trouble.
Accompanying drawing explanation
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, accompanying drawing in description is only correspond to specific embodiments more of the present invention, to those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings when needing.
Fig. 1 is the overall schematic of automatic fire extinguisher of the present invention;
Fig. 2 is the partial sectional view of battery case of the present invention.
Detailed description of the invention
In order to elaborate the technical scheme that the present invention takes for reaching predetermined technique object, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only section Example of the present invention, instead of whole embodiments, and, under the prerequisite not paying creative work, technological means in embodiments of the invention or technical characteristic can be replaced, below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Refer to Fig. 1, the automatic fire extinguisher 100 shown in the embodiment of the present invention, it comprises some water injecting electromagnetic valves 20 be arranged on battery case, fluid reservoir 30, needle valve 40 for putting out a fire for one or more battery case 10, adds pressure electromagnetic valve 50 and controller 60.
The top of described each battery case 10 all offers air inlet 11 and is provided with ventilating fan 13.When the temperature drift of battery case 10 inside, the heat in battery case is extracted out by ventilating fan, and outside air enters battery case 10 inside by air inlet and carries out air circulation, reduces the temperature in battery case 10.Be provided with temperature sensor 15 and Smoke Sensor 17 in described battery case 10, described temperature sensor 15 and Smoke Sensor 17 are electrically connected with described controller 60.
Described water injecting electromagnetic valve 20 is normally closed solenoid valve, is installed on the top of described battery case 10, is communicated with described fluid reservoir 30 by pipeline.Described pipeline and water injecting electromagnetic valve 20, fluid reservoir 30 all adopt snap joint (scheming not note) to be connected.Control this water injecting electromagnetic valve 20 whether conducting, control whether inject water or mixed liquor in the corresponding battery case 10 installing water injecting electromagnetic valve 20.Such as, when water injecting electromagnetic valve 20 conducting time, the liquid in fluid reservoir is flowed in battery case 10 by this water injecting electromagnetic valve 20, otherwise the liquid in fluid reservoir and battery case 10 are isolated.
Described fluid reservoir 30 is built with the mixed liquor of water or fire foam and water, the ratio of extinguishing chemical and water is 1:1 or 1:2 or 1:3, the foam mixing liquid of preferred 1:2, this ratio can preferably by foam coverage burning or heating battery surface, make battery and air exclusion, fire extinguishing or cooling effective.The top of described fluid reservoir 30 installs needle valve 40 and charging valve 41 respectively, and described needle valve 40 is installed on the top of fluid reservoir 30, and by this needle valve 40, fluid reservoir 30 and ambient pressure are balanced each other, the aperture of this needle valve 40 is about 0.5mm.Described charging valve 41 is connected with extraneous water tank (not shown), by this charging valve 41 to fluid reservoir filling foam mixing liquid.Described fluid reservoir 30 tank skin is provided with the observation window of liquid level of band scale.The bottom of described fluid reservoir 30 is communicated with water injecting electromagnetic valve 20 respectively by pipeline, and this fluid reservoir 30 is installed lower than water injecting electromagnetic valve 20, makes the liquid level in fluid reservoir 30 less than or equal to the setting height(from bottom) of water injecting electromagnetic valve 20.
The described pressure electromagnetic valve 50 that adds is a normally closed solenoid valve, is connected in series and between the high pressure tank 200 of vehicle and fluid reservoir 30, the air pressure of described high pressure tank 200 is about 0.8-1MPa by pipeline.
Described controller 60 comprises signal sampling unit and control unit, and described sampling unit and control unit are electrically connected, and described signal sampling unit is all electrically connected with the temperature sensor 15 in described some battery cases and Smoke Sensor 17.Described control unit comprises the first control end and the second control end.Described first control end can distinguish output multi-channel control signal, individually controls each water injecting electromagnetic valve 20.Described second control end and described first control end synchronization action, if when described first control end has any one or multiple signal exports, this the second control end synchronization output signal, pressure electromagnetic valve 50 conducting is added described in control, in addition, this second control end is also electrically connected with primary cut-out (not shown), if when described first control end has any one or multiple signal exports, this second control end also synchronism output controls signal to described primary cut-out, disconnects main circuit to control primary cut-out.
When the battery temperature in some or multiple battery case 10 is too high or when smoldering, correspondence is arranged on temperature sensor 15 in this battery case or Smoke Sensor 17 produces one or more signal of telecommunication, and the signal of telecommunication is sent to controller 60, process through controller 60, controller 60 outputs control signals to the first control end, second control end, first control end controls water injecting electromagnetic valve 20 conducting of one or more battery case 10 of corresponding output signal, simultaneously, second control end controls pressurization solenoid valve conduction 50 and primary cut-out disconnects main circuit, high pressure tank 100 internal gas pressure of vehicle is rapidly by pipeline and add pressure electromagnetic valve 50 and inject in fluid reservoir 30, although the top of fluid reservoir 30 is provided with needle valve 40, but relative to the pressure injected, pressure release is very micro-, fluid reservoir 30 internal gas pressure rises rapidly, promotion foam mixing liquid sprays to the battery case 10 of water injecting electromagnetic valve 20 correspondence of conducting, high pressure makes a large amount of foam be full of rapidly battery case 10, and the cell peripheral covering heating or smolder, make to catch fire hidden danger point and air exclusion and suffocate, play the effect of self-extinguishing.
Water injecting electromagnetic valve 20 and add pressure electromagnetic valve 50 along with self technique and aging, sealing difference can cause micro-leakage situation unavoidably, high pressure tank 200 internal gas pressure certainly will be caused slowly to inject in fluid reservoir 30 by adding pressure electromagnetic valve 20, now, air pressure is discharged by the needle valve 40 being arranged on fluid reservoir 30 top, keeps the pressure in this fluid reservoir 30 balanced with the external world.In addition, fluid reservoir 30 installation site lower than or equal water injecting electromagnetic valve 20, foam mixing liquid in fluid reservoir 30 can not be caused to flow to water injecting electromagnetic valve 20 along pipeline, prevent the slow leakage conductance of water injecting electromagnetic valve 20 from causing foam mixing liquid and flow in battery case 10, cause unnecessary vehicle trouble.
To sum up, the present invention, by installing needle valve at fluid reservoir top, by changing the position of fluid reservoir, makes the installation site of fluid reservoir lower than the position of battery case water injecting electromagnetic valve; By installing the pressure in needle valve change fluid reservoir, under battery case non-faulting state, the pressure in fluid reservoir is kept to be atmospheric pressure state.Connect all non-atmospheric pressure state in water injecting electromagnetic valve two ends of battery case, can effectively prevent magnetic valve from occurring leaking, foam mixing liquid flows in battery case, causes vehicle trouble.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to technical spirit of the present invention, within the spirit and principles in the present invention, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection domain all still belonging to technical solution of the present invention.
Claims (7)
1. an automatic fire extinguisher, it is for being one or more battery case fire extinguishing, it is characterized in that: comprise some water injecting electromagnetic valves be arranged on described battery case, fluid reservoir, needle valve, add pressure electromagnetic valve and controller, described fluid reservoir is communicated with the high pressure tank of vehicle by adding pressure electromagnetic valve, the bottom of described fluid reservoir is communicated with described water injecting electromagnetic valve by pipeline, described fluid reservoir installation site is lower than the installation site of described water injecting electromagnetic valve, described needle valve is installed on the top of fluid reservoir, keep being communicated with outside air, balance is kept to make described fluid reservoir pressure, in described each battery case, temperature sensor and Smoke Sensor are all installed, described controller respectively with described temperature sensor, Smoke Sensor and add pressure electromagnetic valve electrical connection.
2. automatic fire extinguisher according to claim 1, it is characterized in that, described controller comprises signal sampling unit and control unit, described signal sampling unit is all electrically connected with the temperature sensor in described each battery case and Smoke Sensor, described control unit comprises the first control end and the second control end, described first control end can distinguish output multi-channel control signal, individually control each water injecting electromagnetic valve, described second control end and described first control end synchronization action, add pressure electromagnetic valve whether conducting described in control.
3. automatic fire extinguisher according to claim 2, is characterized in that, described second control end also Synchronization Control primary cut-out, controls primary cut-out and disconnects main circuit.
4. automatic fire extinguisher according to claim 1, is characterized in that, the top of described each battery case all offers air inlet and installs ventilating fan.
5. automatic fire extinguisher according to claim 1, is characterized in that, described fluid reservoir tank skin is provided with observation window of liquid level.
6. automatic fire extinguisher according to claim 1, is characterized in that, described fluid reservoir is all connected by snap joint with the pipeline between water injecting electromagnetic valve.
7. according to the arbitrary automatic fire extinguisher described in claim 1 to 6, it is characterized in that, the foam mixing liquid that described fluid reservoir is prepared by a certain percentage built with water or fire foam and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310491262.8A CN104548421A (en) | 2013-10-17 | 2013-10-17 | Automatic fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310491262.8A CN104548421A (en) | 2013-10-17 | 2013-10-17 | Automatic fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
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| CN104548421A true CN104548421A (en) | 2015-04-29 |
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ID=53066157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310491262.8A Pending CN104548421A (en) | 2013-10-17 | 2013-10-17 | Automatic fire extinguishing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104548421A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243128A (en) * | 2017-06-22 | 2017-10-13 | 哲弗智能系统（上海）有限公司 | It is a kind of with HFC-236fa and the battery fire extinguisher of carbon-dioxide fire engine |
| CN107320872A (en) * | 2017-08-04 | 2017-11-07 | 公安部上海消防研究所 | A kind of passive type electric automobile power battery bag fire-proof protection device and method |
| KR101919234B1 (en) * | 2017-05-22 | 2018-11-16 | 이경철 | Automatic fire extinguisher for distributing board |
| CN109011263A (en) * | 2018-10-31 | 2018-12-18 | 国网湖南省电力有限公司 | A kind of large size stored energy power battery pile fire extinguishing system and its extinguishing method |
| CN110755794A (en) * | 2019-11-14 | 2020-02-07 | 东阳汉林传感器有限公司 | Sensor-integrated directional fire suppression system |
| CN110755773A (en) * | 2019-11-28 | 2020-02-07 | 杭州中传消防设备有限公司 | Electric automobile power battery box fire detection device with fire-fighting emergency water injection function |
| CN112398030A (en) * | 2020-11-16 | 2021-02-23 | 无锡嘉威电气智能科技有限公司 | Power equipment capable of intelligently alarming |
| WO2023237045A1 (en) * | 2022-06-08 | 2023-12-14 | 许竣翔 | Cooling and fire-extinguishing device for electric power storage system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101919234B1 (en) * | 2017-05-22 | 2018-11-16 | 이경철 | Automatic fire extinguisher for distributing board |
| CN107243128A (en) * | 2017-06-22 | 2017-10-13 | 哲弗智能系统（上海）有限公司 | It is a kind of with HFC-236fa and the battery fire extinguisher of carbon-dioxide fire engine |
| CN107320872A (en) * | 2017-08-04 | 2017-11-07 | 公安部上海消防研究所 | A kind of passive type electric automobile power battery bag fire-proof protection device and method |
| CN109011263A (en) * | 2018-10-31 | 2018-12-18 | 国网湖南省电力有限公司 | A kind of large size stored energy power battery pile fire extinguishing system and its extinguishing method |
| CN110755794A (en) * | 2019-11-14 | 2020-02-07 | 东阳汉林传感器有限公司 | Sensor-integrated directional fire suppression system |
| CN110755794B (en) * | 2019-11-14 | 2020-08-11 | 安徽龙运智能科技有限公司 | Sensor-integrated directional fire suppression system |
| CN110755773A (en) * | 2019-11-28 | 2020-02-07 | 杭州中传消防设备有限公司 | Electric automobile power battery box fire detection device with fire-fighting emergency water injection function |
| CN112398030A (en) * | 2020-11-16 | 2021-02-23 | 无锡嘉威电气智能科技有限公司 | Power equipment capable of intelligently alarming |
| CN112398030B (en) * | 2020-11-16 | 2022-06-14 | 无锡嘉威电气智能科技有限公司 | Power equipment capable of intelligently alarming |
| WO2023237045A1 (en) * | 2022-06-08 | 2023-12-14 | 许竣翔 | Cooling and fire-extinguishing device for electric power storage system |
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Application publication date: 20150429 |
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